On Sunday I met and photographed an Angel. In the sea, about 8 metres down and 200 metres offshore from Shelly Beach here in Sydney Harbour.

I hung about upside down taking her photo and she got on with her business – namely using her pectoral fins to dig a shallow depression in the sand and covering herself with loose sand, so she could lie in wait for passing fish.

When those fish happen past, though, they won’t be getting any heavenly music or announcements of inconvenient pregnancies. Nope, they’ll be getting a mouthful of sharp little dagger-like teeth.